12-letter words containing t, r, o, p, h, y
- northern spy — an American variety of red-striped apple that ripens in autumn or early winter.
- odontography — a treatise regarding the teeth
- oophorectomy — the operation of removing one or both ovaries; ovariectomy.
- ornithophily — pollination of flowers by birds
- ornithoscopy — divination from the observation of birds
- palatography — a technique for observing the position of the tongue in relation to the palate during articulation, especially by placing powder or dye on the palate and then noting the area from which it has been removed by the contact of the tongue with the palate during the production of a speech sound.
- pentahydroxy — (of a molecule) containing five hydroxyl groups.
- pericynthion — the point at which a spacecraft launched from earth into a lunar orbit is nearest the moon
- petroglyphic — relating to or having the characteristics of a petroglyph or carving made in rock
- petrophysics — the analysis of the constitution and characteristics of rocks
- phanerophyte — a tree or shrub that bears its perennating buds more than 25 cm above the level of the soil
- pharyngotomy — surgical incision into the pharynx
- phenocrystic — relating to a phenocryst
- philanthropy — altruistic concern for human welfare and advancement, usually manifested by donations of money, property, or work to needy persons, by endowment of institutions of learning and hospitals, and by generosity to other socially useful purposes.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- phototherapy — treatment of disease, especially of the skin, by means of light rays.
- phreatophyte — a long-rooted plant that absorbs its water from the water table or the soil above it.
- phrontistery — a place or establishment for thinking, studying, or learning
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- phytographer — a botanist involved with plant description
- phytohormone — hormone (def 3).
- phytophthora — any of a group of fungi of the genus Phytophthora, which cause a serious plant disease, especially affecting apple and pear trees and potatoes.
- phytotherapy — the use of plants and plant products for medicinal purposes
- play through — to pass another foursome or group with their permission, while playing a round of golf
- polygraphist — an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
- polyhistoric — relating to a polyhistor
- polyrhythmic — the simultaneous occurrence of sharply contrasting rhythms within a composition.
- polytriglyph — (in classical architecture) an intercolumniation of at least four triglyphs.
- polyurethane — a thermoplastic polymer containing the group NHCOO: used for padding and insulation in furniture, clothing, and packaging, and in the manufacture of resins for adhesives, elastomers, and fillers.
- praiseworthy — deserving of praise; laudable: a praiseworthy motive.
- prepsychotic — exhibiting behavior that indicates the approach of a psychotic reaction.
- proof theory — (logic) The branch of logic describing procedures for combining logical statements to show, by a series of truth-preserving transformations, that one statement is a consequence of some other statement or group of statements.
- prophylactic — defending or protecting from disease or infection, as a drug.
- prothonotary — a chief clerk or official in certain courts of law.
- protohistory — a branch of study concerned with the transition period between prehistory and the earliest recorded history.
- protosynthex — A query system for English text.
- psychometric — Psychology. psychometrics.
- psychotronic — of or relating to a genre of usually low-budget movies that includes horror, fantasy, science-fiction, and underground films.
- psychotropic — affecting mental activity, behavior, or perception, as a mood-altering drug.
- psychrometer — an instrument for determining atmospheric humidity by the reading of two thermometers, the bulb of one being kept moist and ventilated.
- psychrometry — the employment of the psychrometer.
- pteridophyte — any plant of the division Pteridophyta, characterized by vascular tissue and differentiation into root, stem, and leaves, comprising the ferns, horsetails, and club mosses.
- pyonephritis — suppurative inflammation of the kidney.
- pyritohedral — of or relating to a pyritohedron
- pyritohedron — a crystal form of 12 pentagonal faces.
- pyrocatechol — catechol.
- pyromorphite — a mineral, lead chlorophosphate, Pb 5 P 3 O 1 2 Cl, occurring in crystalline and massive forms, and of a green, yellow, or brown color; green lead ore: a minor ore of lead.
- pyrophyllite — Mineralogy. a phyllosilicate, AlSi 2 O 5 (OH), usually having a white or greenish color, and occurring in either foliated or compact masses, the latter variety being used like soapstone.
- pyrosulphate — any salt of pyrosulphuric acid
- pyrotechnics — the art of making fireworks.